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Hazardous Location Hole Seals, 1.38 x 1.38 x 0.68, SS Type 316

  • Secure sealing with silicon rubber gasket to protect against water and dust ingress in extreme temperature applications ranging from -55 C (-67 F) to 180 C (356 F)
  • Seal pushbutton holes, conduit openings and knockout openings against dust, dirt, oil and water
  • Easy installation in enclosure cutouts with self-centering hole seals
  • Hole seals are available in metric and english standard hole sizes
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Catalog #:


Hazardous Location Hole Seals


  • Fits: 1/2-in. Conduit or M20
  • Hole Diameter: .787 - .885 in / 20 mm
  • Assembly Diameter: 1.36 in / 35 mm
  • Color: Unpainted
  • Finish: Brushed
  • Material: Stainless Steel 316L
  • Weight: 0.1 lb


Hazardous Location Hole Seals are designed to be used on Increased Safety (Ex e) enclosures in ATEX or IECEx Zone 1 or 2 hazardous areas. Certified to be used on metallic, non-painted enclosures, these hole seals ensure a dust-, oil- and water-tight seal. Designed to seal extra pushbutton holes, conduit openings and knockout openings, these self-centering hole seals are easy to install.



Industry Standards

UL 508A Component Recognized; Type 4, 4X,12, 3R; File No. E61997
cUR Component Recognized per CSA C22.2 No. 94; Type 4, 4X, 12,
3R; File No. 42186
IECEx and ATEX Approvals
Suitable for use on increased safety enclosures for ZONE 1 or ZONE
2 assemblies
ATEX Directive 94/9/EC
Ex e IIC Gb
Ex tb IIIC Db IP 66
Sira 14ATEX3233U
Ex e IIC Gb
Ex tb IIIC Db IP 66
IECEx SIR 14.0073U
NEMA/EEMAC Type 3R, 4, 4X, 12
IEC 60529, IP66

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